Spring-motor.



G. L. BONHAM.

SPRING MOTOR.

APPLICATION FILED DEC. 7, 1914.

1, 179,604. Patented Apr. 18, 1916.

102% j [373 522 [5202 j 1 1/5 1Z0 J j]! Z 3 a; 2% /Z34 205 109 114 14 -z35 Z0? ZZ I J Witnesses Z2 inventor *1 UFHQE. I

GUY L. BONHAM, or WEST HARTFORD, CONNECTICUT.

SPRING-MOTOR.

r' this application is a spring'motor and one 10 object of'the present invention is to provide novel means for connecting the actuating spring operatively with the drive shaft.

Another object of the invention is to improve the construction of the drive shaft, its mounting and cooperating parts.

It is within'the scope of the disclosure to improve generally and to enhance the utility of devices of that type'to which the present invention appertains.

1 With the above and other objects in view which will appear as the description proceeds-{the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and "claimed, it being understood that changes in the precise embodiment of the invention herein'di'sclosed can be made withinzthe scope of what is claimed without departing from the spirit of the invention In the accompanying drawing :Figure 1 is a longitudinal-' section wherein'sundry parts appear in elevation; Fig.2 is'a transverse section showing the winding button and attendant parts; Fig. 3 is an elevation of one of-the shafts, parts being broken awayand'sectioned; Fig. 4 is a section detail illustrating the clutch lever; Fig. 5 is an elevation disclosing the auxiliary winding i crank;'Fig. 6 is a longitudinal section show ing a modified form of the invention.

The invention comprisesa casing includ 'ing a tubular body 89 having a reduced neck 90mergi'ng into a transverse, diskelike head '91. Threaded as shown at 92 onto the'head 91 is a forward cap 93. A rear cap 94 is threaded as shown'rat 95 ontothetubular body 89.

The invention includes a drive shaft 96 -j ournaled ina bearing disk 97 located 'at the rear end of the neck 90, the drive shaft being journaled in the head 91. Longitudinal shifting-movement of the'drive shaft-96 is 'pr'evented'through the medium ofa collar andlset screw- 98 which cooperate with'the Specification of Letters Patent.

Patented Apr. 18, 1916.

Application filed December 7, 1914. Serial No. 875,896.

bearing disk 97. Noting Fig. 3 it will be observed that in the rear end of the drive shaft 96 there is formed a recess 99 receiving' for rotationthe reduced forward end 100 of a winding shaft101,-the rear end of which is squared as shown at 102. Threaded'into the squared end 102 of the winding shaft 101 is shown at 103 is a short stubshaft 104 having .an enlarged terminal head 105. A winding button 106 is journaled on the shaft 104 and is provided with a recess which receives .the head 105, the head 105 constituting means for holding the winding button 106 on I the stub-shaft 104. The winding button 106 is provided with a flange 107 to which is secured a pawl 108 coacting with a ratchet wheel1109 mounted on the squared portion 102 of the winding shaft 101. Mounted on the squared portion 102 of the winding shaft 101 and located within the rear cap 94 is a ratchet wheel 110, engageable by a back stop pawl 111 secured to the cap 94. v

I A. main beveled gear wheel 112 is journaled on the shaft 101 adjacent the forward end of the tubular body 89 and is held in place against transverse sliding movement by means of collars 114 on the shaft 101, the collars preferably being held in place by set screws. A helical spring 115 of any desired construction is located within the tubular body 89. One end of the spring 115 is attached to the main beveled gear wheel 112 and the other end of the spring is attached to the ratchet wheel 110 or to the shaft 101 as may be found expedient. A'beveled pinion 116 is secured to the rear end of the drive shaft 96 and is located adjacent the mainbeveled gear:wheel 112.' A stud 117 projects inwardly from the'neck 90. At this point it is to be observed that the neck 90 may have a threaded connection with the body 89 as shown at 90 in order to permit the setting up of the gear and clutch mechanisms to be described hereinafter. Held onthe stud 117 is a beveled pinion 118, the hub of which is indicated at 119. a

Fulcrumed as shown at 120 upon the body 89'is a lever 121 provided at its ends with buttons 122. Projecting from the lever 121 intermediate its ends is a finger 124 adapted to be engaged by either one of a pair of notches 125 formed in asp'ring tongue126 2 i i y 1,179,604

shaft 96 is a gear wheel 127 meshing into a pinion 128 formed upon or connected with the tubular bearing 129 of a blade holding head 130, thehadg'130 being offaiiy desired forni; The blade holding head permits the spring motor forming the subjectin'atter of this applicationto be i 'sed in connection with a revolving safety razor. One end plate of the head 130 is denoted bv the hi1= meial 133 andzi's provided with 310059134 which coa'cts with'theend wall of thefo ward cap 93- tO'lIOld' the bearing 129 in place on-th shaft 131 for-rotation.

InFig. 6 oft lie drawings; a slight modifi cation of the invention is showin. In Fig. (hparts hereinbefore alluded to are denoted by' the reference characters previously used, with. the suffix a; In this modification, the actuating spring 200 is of helical fdiifi but'eomprises a plurality of nested, conical c'onvolutions'. Owing to the'constrution of the spring 200; thesame may consist of a maximum number of 1 donvolutions or coils for agiven lengtl'i of the: spring measured along its axis, Thespringtherefore, will possess great resiliency and strength in a compact fo'tni I In practical operation, the lever 121 is iltedinto the; position shown in Fig. 1, the

finger 124 being engaged with one of the notches 125 inthe'springtongue'126; Un-

derthe circumstances above pointed out, thelug 136 on the 1ev'er121 will be engaged in the notch or recess 137 in the main bev= eled. gear wheel 112' and thus'th latter will be prevented from 'rotatirigonth shaft 101'. Since oneend of the-spring115 is coniiected withthe: main beveled gear 'wheel'112; that end of the spring will be held.

rotating; oscillating motion maybeim= partedf to the winding button 106; and the latter through the medium of'the pawl 108 and the ratchet wheel'109 will impart motion tothe winding" shaft 101 and to the ratehet wheel' llO- and thus'the spring 115 willbe put under tension; thebatik stop pawl 1-11: cooperating with the ratchet wheel 110 to maintain the tension thus secured.

' When it is-desiredjto impart rotary mos tionto the drive shaft 96, the lever 121 is tilted towithtjlraw the l'ug 136 from the notch 137 in theniaingear wheel 112 and by; this fsame operation; the beveled. pinion 118-will be shifted to the left, referring to Eig' f 1; dueto the action of the;arm'128 of the lever 121. When the beveledpinion118 is shines to; the his. the: beveled: pinion will be brought into mesh with. the main beveled gear wheel 112 and into mesh with the beveled pinion 116 which is secured to the drive shaft 916; Then, motion will be transmitted from the spring-11s into the main beveled gear wheel 112 and from the main beveled 'wheel 112 into'the, beveled pinion 116 and the shaft 96, through the mediumof th e beveled pinion 118. When the shaft 96 is rotated intheamanner hereinbefore set forth,

rotary movement will be imparted to the blade holding hea'df130 y n l-sans gear Whoa-1s- 127 and 128. p I A it At tinies should the spring 1 16' 'be sffl What st-ifi it may not be feasible-to rotate the shaftlOl by nieansof the winding but; i

ton 106K 0 Under such circumstances, the stub-shaft 104 isthr'eaded enter-theoris s the". winding shaft 101: thus removing the winding button 106, and in the place gofili winding button and the stub-shaft i04 thore is'empioyed a crank 135v shown in Fig. 5, th same cofiperating with the squaredend 102 of the windingvshaftwlz Having; thus described the invention, what is claimedisz 1;. Aspring inotor comprising aieasing'; a i

drive shaft loeated ihithe easing y'a windingshaft: located: inthe casing; means for hold:- ing the winding shaft against rotation; 51 main gear, wheel. rotatable onithe winding shaft; a spring forming an; perative connection between the wheel? and the winding shaft; movable means for locking tho wheel g an auxiliary gear wheel fixedwto the drive shaft; and a pinion. movablysupportedien the casing a portion of the lockingmeans being operatively eonneoted' with the pinion to move the pinion into and outfof' niesh with the gear wheels: p

2. Asp ring motor comprising a: easing; a winding shaft looated in the; o'asin ;a drive shaft-l looaterl in thercasing, the rive shaft. and: the winding shaft having their ends telescoped for relativerotati'ontmeans for holding: the windingshaft againstirottt tiOii; a main gear. wheel: rotatable. on. the

winding shaft a spring" connecting the, Windin shaft and theimaini gear wheel; releasable means for: locking: the, niai1'1- gear wheel an auxiliary gear wheel fixed to the drive shaft; and a: pinion slidably' supported. (moths-leasing, a portion of the-looking means being operatively' connected to mo'i' e the: pinion into and out of inesh'with the gear wheels.

7 A spring: motor embodying asin i a drive shaft located in thecasing; a win ing shaft. located in theoasing meansgfor holding the winding shaft against rotation; a

maingear rotatable on thewinding shaft; A

a 7 spring eonnectingthe winding shaft --with the main gear wheels; auxiliary gear slidablysupported the casing; a lvsr wheel 'fiXed' to the drive; shaft; apiniot I fulcrumed. on the casing; means carried by as my own, I have hereto affixed my signatliife levelifor Irlnofiing the PiIIIIiOiIJ. into and out ture in the presence of two Witnesses. .0 mes Wit t e gear w ee s; and interengaging elements on the lever and the GUY BONHAM' 5 main gear Wheel for holding the latter Witnesses:

against rotation. FELIX J. BONOONLOIS,

In testimony that I claim the foregoing JOHN D. MORAN.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

